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| Home > Publications database > Petroleum generation and migration in the Berkine (Ghadames) Basin, Eastern Algeria : an organic geochemical and basin modelling study |
| Home > Publications database > Petroleum generation and migration in the Berkine (Ghadames) Basin, Eastern Algeria : an organic geochemical and basin modelling study |
| Dissertation / PhD Thesis/Book | PreJuSER-39900 |
1999
Forschungszentrum, Zentralbibliothek
Jülich
Please use a persistent id in citations: http://hdl.handle.net/2128/20464
Report No.: Juel-3677
Abstract: in this study the petroleum system of one of the most important hydrocarbon bearing basins in Algeria, the Eerkine Basin, was reconstructed by combining the geological knowledge of the basin and the results of geochernical and basin modelling studies . In this order, total organic carbon (Corg) measurements, Rock-Eval pyrolyses, vitrinite reflectance measurements, gas chromatography (CSC) analyses as well as gas chromatography-mass spectrometry (GC-MS) analyses were performed in order to evaluate the source rocks with respect to organic richness, kerogen type, depositional environment and maturity. Following the previous evaluation, the burial, erosion and temperature developments within the basin were reconstructed applying both one-dimensional (PDI/ I D) and twodimensional (Petro odl213) basin modelling programs . The hydrocarbon generation history of two major Palaeozoic source rocks was reconstructed based on the predetermined temperature history and a kinetic model for hydrocarbon (oil and gas) generation . The basin has the benefit of multiple hydrocarbon sources deposited during the Silurian and the Frasnian periods within a continental shelf environment. The development of anoxic to dysoxic bottom water conditions was a prerequisite for the deposition of these organic rich units. Vhile increasing the commercial value of the basin by increasing the hydrocarbon potential, these source rocks by generating hydrocarbons at different epochs during the basin evolution generally complicate the understating of the petroleum system and the oil a_nd gas accumulations. Therefore, the 21a (mite element program PetroMod was used to discuss the history of hydrocarbon generation, expulsion and accumulation along a 205 kan long selected transect which crosses various oil and gas fields . The major goal was to understand these hydrocarbon accumulations of which the origin and emplacement are still unsolved up to date. The understanding of such important petroleum geology aspects can considerably reduce exploration risks. The PetroMod 2D program was also applied in order to understand overpressure developments and the contribution of the major faults to fluid movements.
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